/*
 * ProGuard -- shrinking, optimization, obfuscation, and preverification of Java bytecode.
 *
 * Copyright (c) 2002-2018 GuardSquare NV
 *
 * This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public
 * License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later
 * version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with this program; if not, write to the Free
 * Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */
package proguard.optimize.info;

import proguard.classfile.Clazz;

/**
 * This class stores some optimization information that can be attached to a class.
 *
 * @author Eric Lafortune
 */
public class ClassOptimizationInfo {
    protected boolean hasNoSideEffects = false;

    public void setNoSideEffects() {
        hasNoSideEffects = true;
    }

    public boolean hasNoSideEffects() {
        return hasNoSideEffects;
    }

    public boolean isKept() {
        return true;
    }

    public boolean isInstantiated() {
        return true;
    }

    public boolean isInstanceofed() {
        // We're relaxing the strict assumption of "true".
        return !hasNoSideEffects;
    }

    public boolean isDotClassed() {
        // We're relaxing the strict assumption of "true".
        return !hasNoSideEffects;
    }

    public boolean isCaught() {
        return true;
    }

    public boolean isSimpleEnum() {
        return false;
    }

    public boolean isWrapper() {
        return false;
    }

    public boolean isEscaping() {
        return true;
    }

    public boolean hasSideEffects() {
        return !hasNoSideEffects;
    }

    public boolean containsPackageVisibleMembers() {
        return true;
    }

    public boolean invokesPackageVisibleMembers() {
        return true;
    }

    public boolean mayBeMerged() {
        return false;
    }

    public Clazz getWrappedClass() {
        return null;
    }

    public Clazz getTargetClass() {
        return null;
    }

    public static void setClassOptimizationInfo(Clazz clazz) {
        clazz.setVisitorInfo(new ClassOptimizationInfo());
    }

    public static ClassOptimizationInfo getClassOptimizationInfo(Clazz clazz) {
        return (ClassOptimizationInfo)clazz.getVisitorInfo();
    }
}
